CPU: Any advantage in getting Dual core?

Discussion in 'Mainboards / CPU / RAM' started by revs, March 14, 2007.

  1. revs
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    revs MP Donator

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    As the title says - dual core, or a faster single core?



    i.e. is MP or the any of the common codecs multithreaded, do they take advantage of multiple cores?

    I currently have a AMD 64 3000+/1.8Ghz socket 939. Its ok, but a bit slow with ffdshow and scaling.

    Do I upgrade to sual cores (expensive) or go for the fastest single core socket 939 (4000+ ? or thereabouts)
     
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  3. joystick
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    joystick MP Donator

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    I think you only need a dual-core if you are look into getting HDTV. You would definetely need a dual-core, then.
    I would prefer a Intel-chipset and Motherboard (preferably 965) for dc.

    Well, yes, as always buying new hw is expensive, but if you choose wisely it will be worth it.....

    cheers
    joystick
     
  4. knutinh

    knutinh Portal Pro

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    Transcoding MPEG2 to h264 1080p seems to be able to use 4 core cpus very well.

    -k
     
  5. Spragleknas
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    Spragleknas Administrator

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    I would prefer getting an AMD X2-CPU. It is easier to cool, due to several things 1) bigger CPU-contact surface (forgot source) 2) Lower wattage - Intel and AMD does not rate TDP equally (according to SPCR a year ago)
     
  6. joystick
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    Sorry, but I have a machine running an E6600 with passive(!) cooling for media purposes....

    cheers
     
  7. gxtracker
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    gxtracker Retired Team Member

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    there are definite advantages to going dual core over single core - the biggest of which is recording or playback and any multi-tasking the system may perfom, for example: downloading and parsing an EPG while decoding a movie that you're watching.

    Even a low end multi-core CPU will be more responsive than a fast single core one.
     
  8. Spragleknas
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    Spragleknas Administrator

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    That does not mean that my statement is wrong... only that the Intel dual-core runs cool as well. :)
     
  9. Marcusb
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    one thing that is interesting is that because AMD now use an integrated Northbridge (or was that south? I can never remember) for the memory controller, even though the CPU uses more power, the system on the whole uses the same or less than an Intel system as the motherboard doesn't need the extra controller and the CPU is much better at controlling power to the controller than the motherboard is. Tom's hardware had a big review on power usage for HTPC's a while back, from memory.
     
  10. knutinh

    knutinh Portal Pro

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    And the point Spragleknas was making about having a large contact surface generally goes counter to integrating more and more circuitry into the cpu.

    It all depends on whether the local cooling of cpu/gpu/nb is the weakest link, or if transport of system heat to the surroundings is the limiting factor.

    If your system fan is able to move enough air that the system temp is close to the room temp, then no further gain can be made there. In that case, a cooler cpu or more efficient cpu cooler is the best route to lower cpu temps or less noise.


    In my view, the intel Core2 has proven itself as a solid performer as well as good performance pr watt. I see no reason to go for anything else at this stage for most users.

    I myself use an intel p4 2.8GHz for HTPC and an AMD A64 3000+ for bedroom-PC.


    BTW, the guides, tests and forums at www.silentpcreviews.com is a much better focused forum if you want noise/heat-related answers. MP is about HTPC-software :)

    -k
     
  11. Spragleknas
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    Spragleknas Administrator

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    Corrected link: http://www.silentpcreview.com/

    And:
     
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